Handle-bar



H. T. ROBERTS.

HANDLE BAR.

APPLICATION FILED APR. 28. I919.

Pafented Feb. 24,1920.

' citizen of the I UNITED sTATEs PATENT OF IC V f-nanarm-aomin'rs,or miw YoRK,- N.-Y.

' p mamas-mi Application'filed April 28,

that the handle-bar-be so constructed that transmitted to the V the amount of vibration the handle-bar, be

arms of the rider through reduced to the minimum.

My primary object is to provide an inexpensive and simple construction of handlebar accomplishing this result, and one with which may be used the hand-grips as com- 'monly used in handle-bars of theordinary 1 V handle-bar.

view of a hand-grip as commonly provided n they closelyand tightly form. v V Referring to the accompanying drawing:

Figure lisa plan .view constructed in accordance tion. Fig. 2 is an enlarged plan view of one ofv the similar ends of the handle-bar,-with the grip removed. 7 Fig. 3 is a plan sectional of va handle-bar with vmy invenand Fig. 4 is a vlew like Fig. 2, of an of the handle-bar with the grip and springsection removed, showing a portion of the tubular member of the handle-bariinsection. r The handle-bar in the particular illustrated embodiment of my invention, involves a bar'portion 5, as is common in handle-bar structures, and which, by preference, is formed of hollow steeltu-bing with plugs 6 secured in any suitable way inthe open ends of the portion 5'with the ends of the plugs protruding therefrom, these protruding ends being provided about their peripheries with spiral grooves 7 as illustrated by the plug in Figs. 2 and 4. Each end of the handlebar is formed of a spiral spring 8, these springs surrounding the pro ections 6 and the groove 7 which fit to provide a rigid 7 connection between these springs and the bar-portion 5 which will not loosen and will not permit the springs to become disconnected from the bar-portion 5 in the use of the lying conformingly in The spring-sections8 are in eifectthe handle portions of the handle-bar as the rider grips the handle-bar atthese springs Specification of Letters Patent.

more particularly,

hicle equipped from beyond its 1919. Serial No. 293,051.

with the grips, terposed, the springs 8 being preferably of substantially uniform diameter throug out their length a d of substantially thesame diameter as the adjacent ends of the portion 5 of the bar. c The handle-grips, yieldingmaterial, such as rubber, represented at 9, the form shown being that in common'use, contain socket-portions 10, as shown of the grip in Fig. 3. The grips which are preferably of fit over the springs 8, as indicated in Fig. 1,-

the internal diameter of the socket-portions 10 being slightly less than the diameter of the'spring-sections 8, whereby the grips 9 closelyembrace the springs 8, and in cooperation therewith form ahighly effective means for absorbing vibration, it being understood that the springs 8 should bejsufliciently "Patented F b.-24, -192o.

hereinafter referred to, in-

and are v heavy to present a' degree of resistance sufficient to permitof the steering of the vewith the handle-bar. What I claim as new and desire to secure by Letters Patent, is

1. Ina handle-bar for cycles, the combination of a bar-section containing spiral grooves in the exterior surfaces'of its end portions and coiled-spring shock-absorbing sections rigidly connected therewith, said coiled-spring sections encircling at their ends, the ends of saidbar-section and extending into said spiral grooves.

'2. In a handle bar for the purpose forth," the combination of a. hollow bar-secset tion provided at its ends with plugs located in said bar and ends, the outer ends of said plugs forming projections the outer surfaces ofwhich contain spiral grooves, andcoiledspring sections rigidly connected with said projections, said coiled-spring sections en-v extending outwardly therea circling at then ends said projections and extending into said grooves.

'3; Ina handle-bar for cycles, the combination ofja bar-'- section containing spiral grooves intheexterior surfaces of its end portions and coiled-spring shock-absorbing sections rigidly connected therewith and of substantially uniform diameter throughout their length and of substantially the same diameter as said bar-section, said coiledspring sections encircling at their ends, the

' forth, the combination of a hollow bar-secends of said bar-sections and extending into I plugs forming projections the outer surfaces 5 of which contain spiral grooves, and coiled spring sections rigldly connected with said projections "and of substantially 1 uniform diameter throughout their length 5nd of substantially the samediameter assai'd hare sectlon, said coiled-spring sections jenclrchng 10 at their ends said projections and extendingf lnto szud grooves. V

I HENRY T. ROBERTS. 

